Zahra Suleiman Muhammed, Bahar Jalal Mahmood. Influence of row density and foliar humic acid application on growth parameters, yield and yield components of Niger (Guizotia abyssinica Cass.) in Erbil. ZJPAS [Internet]. 2024 Jun. 30 [cited 2024 Jul. 3];36(3):109-25. Available from: https://zancojournal.su.edu.krd/index.php/JPAS/article/view/1570